/*
 * Copyright 2008 Sanjiv Sahayam
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.pinthura.traverser.collection;

import com.googlecode.pinthura.bean.PathEvaluator;

public final class PathResolverImpl implements PathResolver {

    private final PathEvaluator pathEvaluator;

    public PathResolverImpl(final PathEvaluator pathEvaluator) {
        this.pathEvaluator = pathEvaluator;
    }

    @SuppressWarnings({ "unchecked" })
    public <Input, Output> Output resolvePath(final String path, final Input input) {
        if (NO_PATH.equals(path)) {
            return (Output) input;
        }

        return (Output) pathEvaluator.evaluate(path, input);
    }
}
